// iterator.hpp
// Base iterators.
//
// Copyright (C) 2008  Maksim Sipos <msipos@mailc.net>
//
// This file is a part of the Ripe language project.
//
// Ripe is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

#ifndef R_ITERATOR_HPP
#define R_ITERATOR_HPP

#include "standard.hpp"

namespace Ripe {
  // Attempted to get more items than available in the collection.
  class ErrorIterator : public Exception {};

  template <class T>
  class OneIterator {
    public:
      virtual bool has_more() = 0;
      
      virtual T get() = 0;
  };

  template <class U, class V>
  class TwoIterator {
    public:
      virtual bool has_more() = 0;
      
      virtual void get(U* one, V* two) = 0;
  };

}

#endif // R_ITERATOR_HPP
